# genuine

> Returns false if application is altered in any way after it was built.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public static bool genuine { get; }
```

### Remarks

Otherwise returns true.

**Note**: Use [Application.genuineCheckAvailable](/engine/6000.7/script-reference/unityengine/application/genuinecheckavailable.md) along with `Application.genuine` to verify app integrity. Accessing the `Application.genuine` property is a resource-intensive operation, so do not call it during frame updates or other time-critical code.

**Android**: Returns false if the package name set in project settings mismatches with package name returned at runtime.

You can use this as an anti-piracy check because it checks if the application was altered after being built. Refer to [iOS Scripting](/engine/6000.7/manual/platform-specific/iphone/ios-developing/api.md) and [Android mobile scripting](/engine/6000.7/manual/platform-specific/android/developing/api.md) for more information.